Resync status relaying #615

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opened 2023-08-16 12:38:30 +00:00 by jpds · 1 comment

jpds commented

2023-08-16 12:38:30 +00:00

Contributor

I have observed that in a 3 zone deployment (A, B, C), if:

Zone A loses connectivity to C
B retains connectivity to both
Gateway at A sends data to both A, and B (ensuring write-quorum)
B will send the data to C with a resync
A and C both then report resync errors as they have no way to communicate

However all three zones have their requisite blocks, whilst the full mesh should be there normally - it may be useful to have some way for C to inform A (through B) that all blocks are accounted for.

I have observed that in a 3 zone deployment (A, B, C), if: 1. Zone A loses connectivity to C 2. B retains connectivity to both 3. Gateway at A sends data to both A, and B (ensuring write-quorum) 4. B will send the data to C with a resync 5. A and C both then report resync errors as they have no way to communicate However all three zones have their requisite blocks, whilst the full mesh should be there normally - it may be useful to have some way for C to inform A (through B) that all blocks are accounted for.

lx commented

2023-09-04 12:54:36 +00:00

Owner

Hi, sorry for not answering this earlier. I'm classifying this as low priority, as it doesn't impact Garage's correctness or stability. I'll see what I can do if I have time, but fixing this entirely could end up being a lot of work.